Whistle



H BALTHA'SAR. W-HiSTLE.A APPLlcATloN FILED MA'Y12. 1919.

1,83 1,975. Patented Feb. 24,1920.

UNITED STATES PATENT OFFICE.

HARRY' o. BALTIIASAR, or ST. LOUIS, MISSOURI, ASSIGNOR To COMBINATION AUTO LOOK COMPANY, or ST. LOUIS, MISSOURI, A CORPORATION or MISSOURI.

WHISTLE.

Specication of Letters Patent. Patented Feb. 24, 1920.

Application led May 12, 1919. Serial No. 296,307.

To all whom it may concern.'

Be it known that I, HARRY G. BALTIIASAR, a citizen of the United States, residing at the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Whistles, of which the following is a specification.

This invention relates to whistles 0r signaling devices operated by fluids under compression, and is particularly adapted for use in connection with a cylinder of an internal combustion or explosive engine, such, for in stance, as an automobile engine, a motorcycle engine, or the like. c

It has for an object to provide a device of the character described that is of simple .construction and that maybe attached readily in operative position in direct connection with the cylinder, so that the fluid under compression in the cylinder may be used for sounding the whistle.

Another object is to provide a device ofv Vthe character described having a valve of Figure 1 is a Side elevation of the casing4 containing a plural cylinder explosive or in-V ternal combustion engine, such as the en-V gines used for automobiles, with the device of this invention operatively mounted on apriming cup opening in connection with one of the cylinders of the engine;

Fig. 2 is an enlarged view of the device of this invention shown in Fig. l and removed from the engine cylinder;

Fig. 3 is a sectional view ltaken on the line 3 3 in Fig. 2, showing the valve in closed position; and

Fig. 4- is a fragmentary view of the valvebearing portion of Fig. 3 and parts adjacent to the valve, showing the valve in open position. V

Whistle body 1 is a hollow member adaptedas a sound chamber, and may be of any suitable material, such, for instance, as brass or aluminum, and may be substantially elliptical in general outline, as best seen in Fig. 2, and iS provided with a lateral opening 2, across which opening air or other fluid, expelled under compression into the whistle body, is projected, as hereinafter described, for the purpose of sounding the alarm with a resonant harmonious sound of a` pleasing yet warning intonation. The base end of whistle body 1 is provided with an opening 3 adapted to communicate with the interior of perforated valve stem casing 4 borne by said base end, the end of said casing adjacent the base of Whistle .body l bearing nut-shaped flange 5, and the other end of saidcasing being externally screwthreaded, as best seen in Figs. 3 and 4. The perforation of casing 3 is provided with an enlar ed chamber 6 intermediate the base of whist e body 1 and the screw-threaded end of casing 3, there being an Oblique Slot or passage 7 through which Huid under pressure may be expelled from chamber 6 into whistle body 1 and across opening 2 Of said whistle body, as hereinafter described. Valve seat 8, formed at the screw-threaded end of casing 4, is adapted to coact with the seating face 9 of valve 10, said `seat and said face being preferably ground, to provide a fluid-tight joint when Said valve is seated on said Seat in closing position shownV in Fig. 4, slot 11 in the head of valve 10 being provided for the Well-known purpose of receiving a tool for conveniently grinding the said valve face and the said seat together to a perfect t.

Valve-stem 12 is adapted to be mounted in the perforation of casing 4, one end of said stem bearing valve 10, and the `other end of said stem extending through opening 3 inthe base Of Whistle body 1 and into the hollow portion of said whistle body, as best seen in Figs. 2 and 3, the diameter of said valve-stem 12 being such that there is a clearance space provided in the perforation of casing 4, when stem 12 is mounted therein, so that when valve 10 is in unseated or open position there is a vcommunicating passage outwardly from enlarged chamber 6 through the Seat-bearing end of casing 4.

To support valve 10 normally in seated or closed position, spiral spring 13 is provided, said spring being mounted on the portion of valve-stem 12 within the 'hollow portion of whistle body 1, one end of said Spring being 'flange v5'by means of perforation Y15, said perforation'communicating with enlarged chamber 6, and one end of bent lever or key 16 is mounted in said perforation 15, and is adapted `to extend therethrough, there being a notch or cut-out portion 17 vformed in said lever within said enlarged chamber 6, and adapted to coperate with a similar notch or cut-out portion formed on valve-stem 12 within said kenlarged chamber, so that in a position such as that shown in Fig. 3 the' said notched portion of said'lever and said valve-'stem will Acoopera-te to permit the spring 13l to hold valve 10 in seated or closed position, but when the lever 16 is rotated to a position wherein the rounded or uncut or unnotched portion thereof bears against a shoulder formedv by the notch 18 in valve Vstem 4, as shown in Fig. 4, valve 12 will be VinY open or unseated position until the said lever 16 is further revolved, and the Vfiat face of vnotch VV17 of lever 16 passes beyond the I 'said shoulder formed by notch 18, whereupon the ltension of spring 13 will actV tol drawvalve `12 back to vseated or closed po-.

sition The other end of lever 16 maybe bent, asbest seen in Fig. 2, and may terminate in an eye 19 adapted for attaching "thereto one end of lever-operating cord( 20 or the like, said cord having its lother end within convenient reach ofthe driverof the automobile or the operator of the machine or apparatus with which the deviceof this invention is equipped.V

Reducing nipple 21 may be provided, having its enlarged portion internally "screw- [threaded and adapted to engage the screwthreaded end yof casing 4 so that said enlarged vend'of said nipple 21 may be screwed home into position on said case, there being a well or clearance at the bottom ofthe enlarged bore of said nipple, when same is vscrewed in place, between the seat-bearing end of said casing and the bottom of said enlar ed bore, to provide a valve chamber sufficient for valve 10 to'be moved therein 'from and to seated or closed position, as best seenA in Figs. 3 and 4.

The reduced end of lsaid nippler 21 is eX- ternally screw-threaded, and is 'adapted to f be screwed Vinto a correspondingly-threaded 'priming-cup openingof a cylinder vof engine l22,7aftera priming cup, such as those shown atf23u`-in Fig. 1, has beenremoved, for the purpose -of mounting the device yof --this invention in operative association with a cylinder of engine 22, substantially as shown in Fig. 1, so that when valve 12 is moved to open position, as shown inY Figqli, by appropriately manipulating valve lever or key 16, .air or the like, under compression at the intake stroke of the engine, will pass from the cylinder, in connection ywith which cylinder thev device of this invention is operatively mounted, through nipple 21 and through the passage in casing 4, communicated with when the said valve 12 is in open position, to enlarged chamber 6 and thence through slot 7 thus being projected into the hollow portion of whistlebody 1 and across lateral opening 2 to sound the alarm, and, when valve 12 is moved to closed position (Fig. 3,), communication through the said passage will besealed so that air or iuid under pressure in said cylinder will Ucease to be expelled from the `cylinder through the said passage,

' and the alarm will cease to sound.Y

A great advantage of thedevice of this invention is that the alarmis at all times under the complete control of the operator, and, the device being in communication with the cylinder of the engine, there is lno 4tendency toward clogging the parts or passages of the device with dirtor the like, as is the vcase with whistle alarms operatedby the eX- haust of internal combustion engines.

For convenience in`manufacturing,1whistle body 1 is formed with opening 24 at 4the `top thereof, which openingis closed Iby meansof double-flanged cap 25, one flange 26 being adapted to engage the outer wallofwhistle body 1 adjacent opening 24, andthe Yother flange 27 being adapted to be crimped against theinner wallof saidl whistle body 1 adjacent said opening 24. Cap 25 is preferably made of thinner material thanwthe re-.

maining portion of whistle body 1, so that said cap will tend` to vibrate more `.rapidly than surrounding portions of the whistle body when fiuid under pressure isiprojected into the whistle body. Y Y Y It is, ofcourse, understood that' :in :the case of an engine having a plurality of cylinders, more than one Y cylinder 'may vbe equipped with a device of-thisinvention.

Having thus described this invention, I hereby reserve fthe benefit Ylof Vall 'changes in form, arrangement, order, or use `of parts, as itis evident that many '.minorchangesvmay be made therein without departingfromfthe spirit yof this invention or the scopek of the following claim.

I claim:

VVA whistle alarm ``for operative association with internal combustion engines, comprising a ione-piece -b'odylln'eniber, 'saidfbodymember carrying a resiliently-mounted valve, Psaid. 'valve -`se'nating 'againstl'the 7lower end ofi-the ybody'`x-neI-nb'er`,fijal spring surround'- lin'g'said' rvalve'fstem, held `:atene fend-1in :fixed `position and at its other end by abutting against the inner Wall of the body member, said valve stem having a transverse slot for engagement with the valve-actuating means, said valve-actuating means comprising a lever transversely mounted through said body-member and engaging the slot in said valve stem, whereby said valve is caused to unseat, thereby operating the Whistle, and a union attached to said one-piece body-mem- 10l ber for connecting said member with an engine.

In testimony whereof I hereunto aiix mysignature.

HARRY G. BALTHASAR. 

